HydroDC
Well-Known Member
I use CPU coolers for my DIY light. To protect the COBs in the event of a failure of the 12V DC power supply for the fans, I'd like to add a relay switch so that if the PSU fails, the COBs won't get power. I know little about these relays. Would something like that shown below be a good choice or is there something else I should consider?
![61DN0LthivL._SL1000_.jpg](/data/attachments/2536/2536535-6d6e2c18b148c139f298ebf3db37888c.jpg)
![61DN0LthivL._SL1000_.jpg](/data/attachments/2536/2536535-6d6e2c18b148c139f298ebf3db37888c.jpg)